diff --git a/include/svl/zformat.hxx b/include/svl/zformat.hxx
index 0289e8edaa4c..52a0deb3b10f 100644
--- a/include/svl/zformat.hxx
+++ b/include/svl/zformat.hxx
@@ -273,6 +273,8 @@ public:
             }
             return false;
         }
+    /** Get the count of numbers among string elements **/
+    sal_uInt16 GetNumForNumberElementCount( sal_uInt16 nNumFor ) const;
 
     /** Get the scanned type of the specified subformat. */
     short GetNumForInfoScannedType( sal_uInt16 nNumFor ) const
diff --git a/svl/source/numbers/zformat.cxx b/svl/source/numbers/zformat.cxx
index 935176bdca5d..8da58b524b61 100644
--- a/svl/source/numbers/zformat.cxx
+++ b/svl/source/numbers/zformat.cxx
@@ -5059,6 +5059,16 @@ sal_Int32 SvNumberformat::GetQuoteEnd( const OUString& rStr, sal_Int32 nPos,
     return nLen; // End of String
 }
 
+sal_uInt16 SvNumberformat::GetNumForNumberElementCount( sal_uInt16 nNumFor ) const
+{
+    if ( nNumFor < 4 )
+    {
+        sal_uInt16 nAnz = NumFor[nNumFor].GetCount();
+        return nAnz - ImpGetNumForStringElementCount( nNumFor );
+    }
+    return 0;
+}
+
 sal_uInt16 SvNumberformat::ImpGetNumForStringElementCount( sal_uInt16 nNumFor ) const
 {
     sal_uInt16 nCnt = 0;
diff --git a/xmloff/source/style/xmlnumfe.cxx b/xmloff/source/style/xmlnumfe.cxx
index 3070831b1e40..e449133d5c75 100644
--- a/xmloff/source/style/xmlnumfe.cxx
+++ b/xmloff/source/style/xmlnumfe.cxx
@@ -1456,9 +1456,9 @@ void SvXMLNumFmtExport::ExportPart_Impl( const SvNumberformat& rFormat, sal_uInt
                             case css::util::NumberFormat::FRACTION:
                                 {
                                     sal_Int32 nInteger = nLeading;
-                                    if ( pElemStr && (*pElemStr)[0] == '?' )
+                                    if ( rFormat.GetNumForNumberElementCount( nPart ) == 3 )
                                     {
-                                        //  If the first digit character is a question mark,
+                                        //  If there is only two numbers + fraction in format string
                                         //  the fraction doesn't have an integer part, and no
                                         //  min-integer-digits attribute must be written.
                                         nInteger = -1;